ORDER PASSERES. 211 



a. Myiarchus magister magister RIDGWAY. Arizona Crested Flycatcher. 



[453.] 



Myiarchus mexicanus magister RIDGWAY, Proc. Biol. Soc. Wash., II, 

 April 10, 1884, 90. (Camp Lowell, Arizona.) 



RANGE. Southern Arizona and southwestern New Mexico south through 

 western Mexico to Oaxaca and Chiapas. 



b. Myiarchus magister nelsoni RIDGWAY. Mexican Crested Flycatcher. 



[453a.] 



Myiarchus magister nelsoni RIDGWAY, Bull. U. S. Nat. Mus., No. 50, Pt. 

 4, 1907, 903. (Alta Mira, Tamaulipas, Mexico.) 



RANGE. Valley of Lower Rio Grande, Texas, south through eastern and 

 southern Mexico to Guatemala, Honduras, and Salvador. 



Myiarchus cinerascens (LAWRENCE). 



RANGE. Western United States south to Lower California, Mexico, 

 and Guatemala. 



a. Myiarchus cinerascens cinerascens (LAWRENCE). Ash-throated Flycatcher. 



[454.] 



Tyrannula cinerascens LAWRENCE, Ann. Lye. N. H. N. Y., V, 1851, 121. 

 (Between San Antonio and the Rio Grande, western Texas.) 



RANGE. Western North America. Breeds from southern Washington, 

 northern Utah, central Colorado, and central Texas to northern Lower Cali- 

 fornia, Sinaloa, Durango, and Tamaulipas; accidental in northern Wyoming 

 and northern Colorado; winters south to Guatemala and Yucatan. 



b. Myiarchus cinerascens pertinai BAIRD. Lower California Flycatcher. 



[4546.] 



Myiarchus pertinax BAIRD, Proc. Acad. Nat. Sci. Phila., 1859, 303. (Cape 

 San Lucas, Lower California.) 



RANGE. Southern half of Lower California. 



Myiarchus lawrencei (GIRAUD). 

 RANGE. Southern border of United States south to Panama. 



a. [Myiarchus lawrencei lawrencei. Extralimital.] 



6. Myiarchus lawrencei olivascens RIDGWAY. Olivaceous Flycatcher. 

 [455a.] 



Myiarchus lawrencei olivascens RIDGWAY, Proc. Biol. Soc. Wash., II, 

 April 10, 1884, 91. (Santa Efigenia, Oaxaca, Mexico.) 



